Finding the Third Proportional to 86,461.88 and 185,839.88

Step by Step Solution

1. Step 1: Write the proportion equation
   86,461.88 : 185,839.88 = 185,839.88 : x
2. Step 2: Convert to fraction form
   86,461.88/185,839.88 = 185,839.88/x
3. Step 3: Cross multiply
   86,461.88x = 185,839.88 × 185,839.88
4. Step 4: Simplify right side
   86,461.88x = 34,536,459,140.02
5. Step 5: Solve for x
   x = 34,536,459,140.02/86,461.88
6. Step 6: Final answer
   x = 399,441.48